package com.atguigu.gulimall.product.service.impl;

import com.atguigu.common.constant.ProductConstant;
import com.atguigu.common.to.SkuHasStockVo;
import com.atguigu.common.to.SkuReductionTo;
import com.atguigu.common.to.SpuBoundTo;
import com.atguigu.common.to.es.SkuEsModel;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.product.entity.*;
import com.atguigu.gulimall.product.feign.CouponFeignService;
import com.atguigu.gulimall.product.feign.SearchFeignService;
import com.atguigu.gulimall.product.feign.WareFeignService;
import com.atguigu.gulimall.product.service.*;
import com.atguigu.gulimall.product.vo.*;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    private SpuInfoDescService spuInfoDescService;

    @Autowired
    private SpuImagesService spuImagesService;

    @Autowired
    private AttrService attrService;

    @Autowired
    private ProductAttrValueService attrValueService;

    @Autowired
    private SkuImagesService skuImagesService;

    @Autowired
    private SkuInfoService skuInfoService;

    @Autowired
    private SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    private CouponFeignService couponFeignService;

    @Autowired
    private BrandService brandService;

    @Autowired
    private CategoryService categoryService;

    @Autowired
    private WareFeignService wareFeignService;

    @Autowired
    private SearchFeignService searchFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(new Query<SpuInfoEntity>().getPage(params), new QueryWrapper<SpuInfoEntity>());

        return new PageUtils(page);
    }

    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {

        //1.保存spu基本信息 pms_spu_info
        SpuInfoEntity infoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo, infoEntity);
        infoEntity.setCreateTime(new Date());
        infoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(infoEntity);

        //2.保存spu的描述图片 pms_spu_info_descript
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        descEntity.setSpuId(infoEntity.getId());
        descEntity.setDecript(String.join(",", decript));
        spuInfoDescService.saveSpuInfoDesc(descEntity);

        //3.保存spu的图片集 pms_spu_images
        List<String> images = vo.getImages();
        spuImagesService.saveImages(infoEntity.getId(), images);

        //4.保存spu的规格参数 需要额外操作 pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(baseAttrs1 -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(baseAttrs1.getAttrId());
            AttrEntity byId = attrService.getById(baseAttrs1.getAttrId());
            valueEntity.setAttrName(byId.getAttrName());
            valueEntity.setAttrValue(baseAttrs1.getAttrValues());
            valueEntity.setQuickShow(baseAttrs1.getShowDesc());
            valueEntity.setSpuId(infoEntity.getId());

            return valueEntity;
        }).collect(Collectors.toList());
        attrValueService.saveProductAttr(collect);

        //5.保存spu的积分信息 跨库操作 gulimall_sms -> sms_spu_bounds
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds, spuBoundTo);
        spuBoundTo.setSpuId(infoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        if (r.getCode() != 0) {
            log.error("远程保存spu积分信息错误");
        }


        //5.保存当前spu对应的所有sku信息：
        List<Skus> skus = vo.getSkus();
        if (skus != null && skus.size() > 0) {
            skus.forEach(item -> {
                String defaultImage = "";
                for (Images image : item.getImages()) {
                    if (image.getDefaultImg() == 1) {
                        defaultImage = image.getImgUrl();
                    }
                }
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item, skuInfoEntity);
                skuInfoEntity.setBrandId(infoEntity.getBrandId());
                skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(infoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImage);
                //5.1).保存sku的基本信息 pms_sku_info
                skuInfoService.saveSkuInfo(skuInfoEntity);


                Long skuId = skuInfoEntity.getSkuId();

                List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(images1 -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(images1.getImgUrl());
                    skuImagesEntity.setDefaultImg(images1.getDefaultImg());
                    return skuImagesEntity;
                }).filter(skuImagesEntity -> !StringUtils.isEmpty(skuImagesEntity.getImgUrl())).collect(Collectors.toList());

                //5.2).保存sku的图片信息 pms_sku_images
                skuImagesService.saveBatch(imagesEntities);
                //TODO 没有图片无需保存

                //5.3).保存sku的销售属性信息 psm_sku_sale_attr_value
                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(attr1 -> {
                    SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(attr1, attrValueEntity);
                    attrValueEntity.setSkuId(skuId);

                    return attrValueEntity;
                }).collect(Collectors.toList());
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);


                //5.4).保存sku的优惠满减信息 跨库操作 gulimall-sms->sms_sku_ladder(打折表)\sms_sku_full_reduction(满减表)\sms_member_price(会员价格表)
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item, skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if (skuReductionTo.getFullCount() > 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0")) == 1) {
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                    if (r1.getCode() != 0) {
                        log.error("远程保存sku优惠信息失败");
                    }
                }

            });
        }


    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity infoEntity) {

        this.baseMapper.insert(infoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        LambdaQueryWrapper<SpuInfoEntity> wrapper = new LambdaQueryWrapper<>();
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)) {
            wrapper.and((w) -> {
                w.eq(SpuInfoEntity::getId, key).or().like(SpuInfoEntity::getSpuName, key);
            });
        }

        String status = (String) params.get("status");
        if (!StringUtils.isEmpty(status)) {
            wrapper.eq(SpuInfoEntity::getPublishStatus, status);
        }

        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)) {
            wrapper.eq(SpuInfoEntity::getBrandId, brandId);
        }

        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)) {
            wrapper.eq(SpuInfoEntity::getCatalogId, catelogId);
        }

        IPage<SpuInfoEntity> page = this.page(new Query<SpuInfoEntity>().getPage(params), wrapper);

        return new PageUtils(page);

    }

    /**
     * 商品上架
     *
     * @param spuId
     */
    @Override
    public void up(Long spuId) {
        //组装需要的数据
        //1.查出当spuId对应的sku信息，品牌的名字
        List<SkuInfoEntity> skus = skuInfoService.getSkusBySpuId(spuId);
        List<Long> skuIdList = skus.stream()
                .map(SkuInfoEntity::getSkuId).collect(Collectors.toList());

        //TODO 4.查询sku所有的可以被检索的规模和属性
        List<ProductAttrValueEntity> baseAttrs = attrValueService.baseAttrListForSpu(spuId);
        List<Long> attrIds = baseAttrs.stream()
                .map(attr -> {
                    return attr.getAttrId();
                }).collect(Collectors.toList());

        //挑出需要检索的属性id
        List<Long> searchAttrIds = attrService.selectSearchAttrs(attrIds);

        Set<Long> idSet = new HashSet<>(searchAttrIds);

        List<SkuEsModel.Attrs> attrsList = baseAttrs.stream()
                .filter(item -> {
                    return idSet.contains(item.getAttrId());
                })
                .map(item -> {
                    SkuEsModel.Attrs attrs1 = new SkuEsModel.Attrs();
                    BeanUtils.copyProperties(item, attrs1);
                    return attrs1;
                }).collect(Collectors.toList());

        //TODO 1.发送远程调用，查询是否有库存
        Map<Long, Boolean> stockMap = null;
        try {
            R<List<SkuHasStockVo>> skuHasStock = wareFeignService.getSkuHasStock(skuIdList);
            stockMap = skuHasStock.getData().stream().collect(Collectors.toMap(SkuHasStockVo::getSkuId, item -> item.getHasStock()));
        } catch (Exception e) {
            log.error("远程调用库存服务查询有异常：原因{}", e);
        }


        //2.封装信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upProducts = skus.stream()
                .map(sku -> {
                    SkuEsModel esModel = new SkuEsModel();
                    BeanUtils.copyProperties(sku, esModel);
                    //price,image,stock,score,brandName,brandImage,catelogName,attrs
                    esModel.setSkuPrice(sku.getPrice());
                    esModel.setSkuImg(sku.getSkuDefaultImg());
                    //设置库存信息
                    if (finalStockMap == null) {
                        esModel.setHasStock(true);
                    }else {
                        esModel.setHasStock(finalStockMap.get(sku.getSkuId()));
                    }
                    //TODO 2.查询热度评分
                    esModel.setHotScore(0L);
                    //TODO 3.查询品牌和分类信息名字
                    BrandEntity brandEntity = brandService.getById(esModel.getBrandId());
                    esModel.setBrandName(brandEntity.getName());
                    esModel.setBrandImg(brandEntity.getLogo());
                    CategoryEntity categoryEntity = categoryService.getById(esModel.getCatalogId());
                    esModel.setCatalogName(categoryEntity.getName());
                    //设置检索属性
                    esModel.setAttrs(attrsList);

                    return esModel;
                }).collect(Collectors.toList());

        //TODO 5.将数据发送给es进行保存
        R r = searchFeignService.productStatusUp(upProducts);

        if (r.getCode() == 0) {
            //远程调用成功
            //TODO 6.修改spu的状态为已上架
            baseMapper.updateSpuStatus(spuId, ProductConstant.ProductStatusEnum.SPU_UP.getCode());
        }else {
            //远程调用失败
            //TODO 重复调用 接口幂等性
        }
    }


}